Introduction : One of the goals of mandibular reconstruction after tumor resection is to return to premorbid form and function. Both stereolithography (SLG) and a conventional reconstructive (CR) plates with bone replacement are a valuable for reconstruction following resection of tumors. Purpose: The aim of this study was to compare the outcome of (SLG) modeling technology versus (CR) plate in cases of tumor resection. Materials and Methods: Patients eligible for inclusion in this study had unilateral mandibular discontinuity defects. Patients were randomly divided into 2 groups. Each group comprised 10 patients. In group I (study group), (SLG) modeling technology plates were used, while group II (control group) used (CR) plates. The lesions were resected, and their sites were reconstructed using last mentioned plates, with autogenous bone graft in a second stage. The need for intraoperative plate readjustment, plate placement time and operation time were reviewed. Results: Twenty patients were enrolled in this study. In group I, plates were placed without intraoperative handling. All plates in group II required readjustment. Average operating times were 3.200 ± 0.258 hours in group I and 4.325 ±0.290 hours in group II (P = .000). Mean times for plate placement were 22.900 ± 2.234 minutes and 32.900 ± 2.234 in groups I and II, respectively. The difference resulted in an average time gain of 10 minutes. Conclusion: (SLG) modeling technology is superior in reflecting the bone anatomy than (CR) plate, thus the plate prebending using SLG, eliminating intraoperative plate readjustment and providing better plate adaptation with better contour. It decreases operating time.
be managed with multispecialty team. Constant follow-up and optimal time to start the reconstructive management depend upon a disease-free state of atleast 4 months.
Objectives: This research was carried out to evaluate the effect of bio-modulation of the osteotomy site with Er,Cr:YSGG LASER on peri-implant crestal bone level changes in cases having edentulous mandible opposed with maxillary natural teeth rehabilitated with fixed detachable prosthesis constructed from BioHPP (High Performance Polymer) using CAD/CAM technology.
Materials and Methods:This is a split mouth design study in which ten male patients exhibiting completely edentulous mandibular arch opposed by dentate maxillary arch were rehabilitated with fixed detachable lower single denture supported by six dental implants constructed from BioHPP. The osteotomy segment bio-modulated using Er,Cr:YSGG (2790 nm) LASER was randomly selected and considered as the study group while the other segment (non laser mediated osteotomy) as the control group. Lower single complete dentures were constructed to all participants following the same basic principles. All patients were rehabilitated with fixed detachable lower dentures using Computer-aided design/computer-aided manufacturing (CAD/CAM) technology supported by six dental implants. The application of 3 dimensional (3D) imaging (computerized tomography scan), 3D software for proper treatment planning, and fabrication of computer-generated surgical guides using additive prototyping were followed for all patients. Surgical installation of the implants was performed under strict aseptic conditions The selected osteotomy segment (study group) was biomodulated using Er,Cr:YSGG (2790 nm) LASER and the implants were immediately loaded using the modified existing denture. After 3 months, the patients were scheduled for construction of the definitive prosthesis from which milling was performed in BioHPP polyether-ether ketone (PEEK) disc material. Peri-implant crestal bone level changes were assessed using digital periapical radiographs taken with the standardized long cone paralleling technique at six, twelve and eighteen months after loading. Data collected were statistically analyzed using (ANOVA-test P < 0.05).
Background: Paracentesis is an essential life measure for ascites complications management. The aim: of this study was to apply nursing safety measure to prevent complication for liver cirrhotic patient undergoing paracentesis. Methodology: Quasiexperimental design was utilized. Study subjects: All available nurses were included (55) nurses. Two tools: Nursing interviewing questionnaire and observational checklist for nurse's practices for cirrhotic patients undergoing paracentesis. Results: The present study revealed that nurses had highly statistically significant improvement in total level of knowledge and practice post implementing nursing education. The study concluded: There was a statistically significant positive effect on nurses' knowledge and practice for patients undergoing paracentesis after education. The study recommended: Providing specific courses and periodical follow up for enhancing nurses' knowledge and practice.
The study aimed to compare between dynamic implant valve (DIVA) and the crestal ballooning techniques in elevating the maxillary sinus membrane (MSM) in conjunction with simultaneous implantation. Patients and methods: 20-patient prospective clinical cohort study. Ages ranged from 42 to 53 years, and had atrophic edentulous maxillae in the posterior region. To determine maxillary sinus status, patients were investigated utilizing intraoral clinical photographs and CBCT series. Closed Sinus Lifting done and compared between DIVA and ballooning techniques on patients who were randomly separated into two equal groups. The predicted research variables were intraoperative primary stability and level of sinus membrane lift. The main outcome factors were secondary implant Osseointegration stability (ISQ) and the amount of bone height gain. Results: Before surgery, the DIVA and Balloon groups had mean bone heights of 5.8 ± 0.67mm and 6.8 ± 0.86mm , which increased significantly to 12.8± 0.53 and 10.8± 0.67 after 6 months postoperatively. ISQ for DIVA and Balloon groups were 39.0± 2.16 and 40.0±2.16 preoperatively, respectively, and increased to 71.7±1.60 and 70.4±1.27 nine months postoperatively which was significantly higher at 3 months in DIVA group.
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